【单选题】The Mekong River, which________ several countries in Southeast Asia, ______to be playing a significant role in the region.
C.
is linked; is considered
【单选题】某固体饮料,经实验证实为大肠菌群阳性的管数为:0(1gx3)、0(0.1gx3)、0(0.01gx3),请判断该样品大肠菌群最可能数是()MPN/100g。
【简答题】There was a(n) ____ long silence in the room. Neither of them had the nerve to say something to break the ice.
【单选题】一个汉字的国标码需要用2个字节存储,其中每个字节的最高二进制位的值分别为 ______。
【单选题】The Mekong River Commission has found no evidence ______ the dams on the upper reaches have an influence on the water flow downstream.
【多选题】下列可作为编制记账凭证依据的原始凭证有( )。